using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Newtonsoft.Json;
using StackExchange.Redis;
namespace ProjectBase.Data.Redis
{
public class RedisHelper
{
private int DbNum { get; set; } // 数据库连接数量
private readonly ConnectionMultiplexer _conn;
public string CustomKey;
#region 构造函数
public RedisHelper(int dbNum = 0)
: this(dbNum, null)
{
}
public RedisHelper(int dbNum, string readWriteHosts)
{
DbNum = dbNum;
_conn =
string.IsNullOrWhiteSpace(readWriteHosts) ?
RedisConnection.Instance :
RedisConnection.GetConnectionMultiplexer(readWriteHosts);
}
#endregion 构造函数
#region String
#region 同步方法
///
/// 保存单个key value
///
/// Redis Key
/// 保存的值
/// 过期时间
///
public bool SetString(string key, string value, TimeSpan? expiry = default(TimeSpan?))
{
key = AddSysCustomKey(key);
return Do(db => db.StringSet(key, value, expiry));
}
///
/// 保存多个key value
///
/// 键值对
///
public bool SetString(List> keyValues)
{
List> newkeyValues =
keyValues.Select(p => new KeyValuePair(AddSysCustomKey(p.Key), p.Value)).ToList();
return Do(db => db.StringSet(newkeyValues.ToArray()));
}
///
/// 保存一个对象
///
///
///
///
///
///
public bool SetString(string key, T obj, TimeSpan? expiry = default(TimeSpan?))
{
key = AddSysCustomKey(key);
string json = ConvertJson(obj);
return Do(db => db.StringSet(key, json, expiry));
}
///
/// 获取单个key的值
///
/// Redis Key
///
public string GetString(string key)
{
key = AddSysCustomKey(key);
return Do(db => db.StringGet(key));
}
///
/// 获取多个Key
///
/// Redis Key集合
///
public RedisValue[] GetString(List listKey)
{
List newKeys = listKey.Select(AddSysCustomKey).ToList();
return Do(db => db.StringGet(ConvertRedisKeys(newKeys)));
}
///
/// 获取一个key的对象
///
///
///
///
public T GetString(string key)
{
key = AddSysCustomKey(key);
return Do(db => ConvertObj(db.StringGet(key)));
}
///
/// 为数字增长val
///
///
/// 可以为负
/// 增长后的值
public double IncrementString(string key, double val = 1)
{
key = AddSysCustomKey(key);
return Do(db => db.StringIncrement(key, val));
}
///
/// 为数字减少val
///
///
/// 可以为负
/// 减少后的值
public double DecrementString(string key, double val = 1)
{
key = AddSysCustomKey(key);
return Do(db => db.StringDecrement(key, val));
}
#endregion 同步方法
#region 异步方法
///
/// 保存单个key value
///
/// Redis Key
/// 保存的值
/// 过期时间
///
public async Task SetAsyncString(string key, string value, TimeSpan? expiry = default(TimeSpan?))
{
key = AddSysCustomKey(key);
return await Do(db => db.StringSetAsync(key, value, expiry));
}
///
/// 保存多个key value
///
/// 键值对
///
public async Task SetAsyncString(List> keyValues)
{
List> newkeyValues =
keyValues.Select(p => new KeyValuePair(AddSysCustomKey(p.Key), p.Value)).ToList();
return await Do(db => db.StringSetAsync(newkeyValues.ToArray()));
}
///
/// 保存一个对象
///
///
///
///
///
///
public async Task SetAsyncString(string key, T obj, TimeSpan? expiry = default(TimeSpan?))
{
key = AddSysCustomKey(key);
string json = ConvertJson(obj);
return await Do(db => db.StringSetAsync(key, json, expiry));
}
///
/// 获取单个key的值
///
/// Redis Key
///
public async Task GetAsyncString(string key)
{
key = AddSysCustomKey(key);
return await Do(db => db.StringGetAsync(key));
}
///
/// 获取多个Key
///
/// Redis Key集合
///
public async Task GetAsyncString(List listKey)
{
List newKeys = listKey.Select(AddSysCustomKey).ToList();
return await Do(db => db.StringGetAsync(ConvertRedisKeys(newKeys)));
}
///
/// 获取一个key的对象
///
///
///
///
public async Task GetAsyncString(string key)
{
key = AddSysCustomKey(key);
string result = await Do(db => db.StringGetAsync(key));
return ConvertObj(result);
}
///
/// 为数字增长val
///
///
/// 可以为负
/// 增长后的值
public async Task IncrementAsyncString(string key, double val = 1)
{
key = AddSysCustomKey(key);
return await Do(db => db.StringIncrementAsync(key, val));
}
///
/// 为数字减少val
///
///
/// 可以为负
/// 减少后的值
public async Task DecrementAsyncString(string key, double val = 1)
{
key = AddSysCustomKey(key);
return await Do(db => db.StringDecrementAsync(key, val));
}
#endregion 异步方法
#endregion String
#region Hash
#region 同步方法
///
/// 判断某个数据是否已经被缓存
///
///
///
///
public bool IsExistsHash(string key, string dataKey)
{
key = AddSysCustomKey(key);
return Do(db => db.HashExists(key, dataKey));
}
///
/// 存储数据到hash表
///
///
///
///
///
///
public bool SetHash(string key, string dataKey, T t)
{
key = AddSysCustomKey(key);
return Do(db =>
{
string json = ConvertJson(t);
return db.HashSet(key, dataKey, json);
});
}
///
/// 移除hash中的某值
///
///
///
///
public bool DeleteHash(string key, string dataKey)
{
key = AddSysCustomKey(key);
return Do(db => db.HashDelete(key, dataKey));
}
///
/// 移除hash中的多个值
///
///
///
///
public long DeleteHash(string key, List dataKeys)
{
key = AddSysCustomKey(key);
//List dataKeys1 = new List() {"1","2"};
return Do(db => db.HashDelete(key, dataKeys.ToArray()));
}
///
/// 从hash表获取数据
///
///
///
///
///
public T GetHash(string key, string dataKey)
{
key = AddSysCustomKey(key);
return Do(db =>
{
string value = db.HashGet(key, dataKey);
return ConvertObj(value);
});
}
///
/// 为数字增长val
///
///
///
/// 可以为负
/// 增长后的值
public double IncrementHash(string key, string dataKey, double val = 1)
{
key = AddSysCustomKey(key);
return Do(db => db.HashIncrement(key, dataKey, val));
}
///
/// 为数字减少val
///
///
///
/// 可以为负
/// 减少后的值
public double DecrementHash(string key, string dataKey, double val = 1)
{
key = AddSysCustomKey(key);
return Do(db => db.HashDecrement(key, dataKey, val));
}
///
/// 获取hashkey所有Redis key
///
///
///
///
public List KeysHash(string key)
{
key = AddSysCustomKey(key);
return Do(db =>
{
RedisValue[] values = db.HashKeys(key);
return ConvetList(values);
});
}
#endregion 同步方法
#region 异步方法
///
/// 判断某个数据是否已经被缓存
///
///
///
///
public async Task IsExistsAsyncHash(string key, string dataKey)
{
key = AddSysCustomKey(key);
return await Do(db => db.HashExistsAsync(key, dataKey));
}
///
/// 存储数据到hash表
///
///
///
///
///
///
public async Task SetAsyncHash(string key, string dataKey, T t)
{
key = AddSysCustomKey(key);
return await Do(db =>
{
string json = ConvertJson(t);
return db.HashSetAsync(key, dataKey, json);
});
}
///
/// 移除hash中的某值
///
///
///
///
public async Task DeleteAsyncHash(string key, string dataKey)
{
key = AddSysCustomKey(key);
return await Do(db => db.HashDeleteAsync(key, dataKey));
}
///
/// 移除hash中的多个值
///
///
///
///
public async Task DeleteAsyncHash(string key, List dataKeys)
{
key = AddSysCustomKey(key);
//List dataKeys1 = new List() {"1","2"};
return await Do(db => db.HashDeleteAsync(key, dataKeys.ToArray()));
}
///
/// 从hash表获取数据
///
///
///
///
///
public async Task GeAsyncHash(string key, string dataKey)
{
key = AddSysCustomKey(key);
string value = await Do(db => db.HashGetAsync(key, dataKey));
return ConvertObj(value);
}
///
/// 为数字增长val
///
///
///
/// 可以为负
/// 增长后的值
public async Task IncrementAsyncHash(string key, string dataKey, double val = 1)
{
key = AddSysCustomKey(key);
return await Do(db => db.HashIncrementAsync(key, dataKey, val));
}
///
/// 为数字减少val
///
///
///
/// 可以为负
/// 减少后的值
public async Task DecrementAsyncHash(string key, string dataKey, double val = 1)
{
key = AddSysCustomKey(key);
return await Do(db => db.HashDecrementAsync(key, dataKey, val));
}
///
/// 获取hashkey所有Redis key
///
///
///
///
public async Task> KeysAsyncHash(string key)
{
key = AddSysCustomKey(key);
RedisValue[] values = await Do(db => db.HashKeysAsync(key));
return ConvetList(values);
}
#endregion 异步方法
#endregion Hash
#region List
#region 同步方法
///
/// 移除指定ListId的内部List的值
///
///
///
public void RemoveList(string key, T value)
{
key = AddSysCustomKey(key);
Do(db => db.ListRemove(key, ConvertJson(value)));
}
///
/// 获取指定key的List
///
///
///
public List ListRange(string key)
{
key = AddSysCustomKey(key);
return Do(redis =>
{
var values = redis.ListRange(key);
return ConvetList(values);
});
}
///
/// 入队
///
///
///
public void ListRightPush(string key, T value)
{
key = AddSysCustomKey(key);
Do(db => db.ListRightPush(key, ConvertJson(value)));
}
///
/// 出队
///
///
///
///
public T ListRightPop(string key)
{
key = AddSysCustomKey(key);
return Do(db =>
{
var value = db.ListRightPop(key);
return ConvertObj(value);
});
}
///
/// 入栈
///
///
///
///
public void ListLeftPush(string key, T value)
{
key = AddSysCustomKey(key);
Do(db => db.ListLeftPush(key, ConvertJson(value)));
}
///
/// 出栈
///
///
///
///
public T ListLeftPop(string key)
{
key = AddSysCustomKey(key);
return Do(db =>
{
var value = db.ListLeftPop(key);
return ConvertObj(value);
});
}
///
/// 获取集合中的数量
///
///
///
public long ListLength(string key)
{
key = AddSysCustomKey(key);
return Do(redis => redis.ListLength(key));
}
#endregion 同步方法
#region 异步方法
///
/// 移除指定ListId的内部List的值
///
///
///
public async Task ListRemoveAsync(string key, T value)
{
key = AddSysCustomKey(key);
return await Do(db => db.ListRemoveAsync(key, ConvertJson(value)));
}
///
/// 获取指定key的List
///
///
///
public async Task> ListRangeAsync(string key)
{
key = AddSysCustomKey(key);
var values = await Do(redis => redis.ListRangeAsync(key));
return ConvetList(values);
}
///
/// 入队
///
///
///
public async Task ListRightPushAsync(string key, T value)
{
key = AddSysCustomKey(key);
return await Do(db => db.ListRightPushAsync(key, ConvertJson(value)));
}
///
/// 出队
///
///
///
///
public async Task ListRightPopAsync(string key)
{
key = AddSysCustomKey(key);
var value = await Do(db => db.ListRightPopAsync(key));
return ConvertObj(value);
}
///
/// 入栈
///
///
///
///
public async Task ListLeftPushAsync(string key, T value)
{
key = AddSysCustomKey(key);
return await Do(db => db.ListLeftPushAsync(key, ConvertJson(value)));
}
///
/// 出栈
///
///
///
///
public async Task ListLeftPopAsync(string key)
{
key = AddSysCustomKey(key);
var value = await Do(db => db.ListLeftPopAsync(key));
return ConvertObj(value);
}
///
/// 获取集合中的数量
///
///
///
public async Task ListLengthAsync(string key)
{
key = AddSysCustomKey(key);
return await Do(redis => redis.ListLengthAsync(key));
}
#endregion 异步方法
#endregion List
#region SortedSet 有序集合
#region 同步方法
///
/// 添加
///
///
///
///
public bool SortedSetAdd(string key, T value, double score)
{
key = AddSysCustomKey(key);
return Do(redis => redis.SortedSetAdd(key, ConvertJson(value), score));
}
///
/// 删除
///
///
///
public bool SortedSetRemove(string key, T value)
{
key = AddSysCustomKey(key);
return Do(redis => redis.SortedSetRemove(key, ConvertJson(value)));
}
///
/// 获取全部
///
///
///
public List SortedSetRangeByRank(string key)
{
key = AddSysCustomKey(key);
return Do(redis =>
{
var values = redis.SortedSetRangeByRank(key);
return ConvetList(values);
});
}
///
/// 获取集合中的数量
///
///
///
public long SortedSetLength(string key)
{
key = AddSysCustomKey(key);
return Do(redis => redis.SortedSetLength(key));
}
#endregion 同步方法
#region 异步方法
///
/// 添加
///
///
///
///
public async Task SortedSetAddAsync(string key, T value, double score)
{
key = AddSysCustomKey(key);
return await Do(redis => redis.SortedSetAddAsync(key, ConvertJson(value), score));
}
///
/// 删除
///
///
///
public async Task SortedSetRemoveAsync(string key, T value)
{
key = AddSysCustomKey(key);
return await Do(redis => redis.SortedSetRemoveAsync(key, ConvertJson(value)));
}
///
/// 获取全部
///
///
///
public async Task> SortedSetRangeByRankAsync(string key)
{
key = AddSysCustomKey(key);
var values = await Do(redis => redis.SortedSetRangeByRankAsync(key));
return ConvetList(values);
}
///
/// 获取集合中的数量
///
///
///
public async Task SortedSetLengthAsync(string key)
{
key = AddSysCustomKey(key);
return await Do(redis => redis.SortedSetLengthAsync(key));
}
#endregion 异步方法
#endregion SortedSet 有序集合
#region key
///
/// 删除单个key
///
/// redis key
/// 是否删除成功
public bool KeyDelete(string key)
{
key = AddSysCustomKey(key);
return Do(db => db.KeyDelete(key));
}
///
/// 删除多个key
///
/// rediskey
/// 成功删除的个数
public long KeyDelete(List keys)
{
List newKeys = keys.Select(AddSysCustomKey).ToList();
return Do(db => db.KeyDelete(ConvertRedisKeys(newKeys)));
}
///
/// 判断key是否存储
///
/// redis key
///
public bool KeyExists(string key)
{
key = AddSysCustomKey(key);
return Do(db => db.KeyExists(key));
}
///
/// 重新命名key
///
/// 就的redis key
/// 新的redis key
///
public bool KeyRename(string key, string newKey)
{
key = AddSysCustomKey(key);
return Do(db => db.KeyRename(key, newKey));
}
///
/// 设置Key的时间
///
/// redis key
///
///
public bool KeyExpire(string key, TimeSpan? expiry = default(TimeSpan?))
{
key = AddSysCustomKey(key);
return Do(db => db.KeyExpire(key, expiry));
}
#endregion key
#region 发布订阅
///
/// Redis发布订阅 订阅
///
///
///
public void Subscribe(string subChannel, Action handler = null)
{
ISubscriber sub = _conn.GetSubscriber();
sub.Subscribe(subChannel, (channel, message) =>
{
if (handler == null)
{
Console.WriteLine(subChannel + " 订阅收到消息:" + message);
}
else
{
handler(channel, message);
}
});
}
///
/// Redis发布订阅 发布
///
///
///
///
///
public long Publish(string channel, T msg)
{
ISubscriber sub = _conn.GetSubscriber();
return sub.Publish(channel, ConvertJson(msg));
}
///
/// Redis发布订阅 取消订阅
///
///
public void Unsubscribe(string channel)
{
ISubscriber sub = _conn.GetSubscriber();
sub.Unsubscribe(channel);
}
///
/// Redis发布订阅 取消全部订阅
///
public void UnsubscribeAll()
{
ISubscriber sub = _conn.GetSubscriber();
sub.UnsubscribeAll();
}
#endregion 发布订阅
#region 其他
public ITransaction CreateTransaction()
{
return GetDatabase().CreateTransaction();
}
public IDatabase GetDatabase()
{
return _conn.GetDatabase(DbNum);
}
public IServer GetServer(string hostAndPort)
{
return _conn.GetServer(hostAndPort);
}
///
/// 设置前缀
///
///
public void SetSysCustomKey(string customKey)
{
CustomKey = customKey;
}
#endregion 其他
#region 辅助方法
private string AddSysCustomKey(string oldKey)
{
var prefixKey = CustomKey ?? RedisConnection.SysCustomKey;
return prefixKey + oldKey;
}
private T Do(Func func)
{
var database = _conn.GetDatabase(DbNum);
return func(database);
}
private string ConvertJson(T value)
{
string result = value is string ? value.ToString() : JsonConvert.SerializeObject(value);
return result;
}
private T ConvertObj(RedisValue value)
{
return typeof(T) == typeof(string) ? (T)Convert.ChangeType(value.ToString(), typeof(T)) : JsonConvert.DeserializeObject(value);
}
private List ConvetList(RedisValue[] values)
{
List result = new List();
foreach (var item in values)
{
var model = ConvertObj(item);
result.Add(model);
}
return result;
}
private RedisKey[] ConvertRedisKeys(List redisKeys)
{
return redisKeys.Select(redisKey => (RedisKey)redisKey).ToArray();
}
#endregion 辅助方法
}
}